The Flask Glass Round Bottom 3 Ground Neck is a high-quality laboratory glassware item designed for advanced chemical reactions, synthesis, and distillation setups requiring multiple connections. It is manufactured from heat-resistant, durable borosilicate glass in full compliance with DIN/ISO standards, ensuring excellent thermal stability, chemical resistance, and long-term reliability.

The flask features three perfectly ground NS necks with smooth interior surfaces, providing excellent leak-proof closure and secure compatibility with standard laboratory joints. This multi-neck configuration allows simultaneous use of accessories such as condensers, thermometers, dropping funnels, or inert gas inlets, making it ideal for complex experimental assemblies.

Its thick wall construction, heavy base, and reinforced rim significantly reduce the risk of breakage during washing, handling, and transportation. White enamel inscriptions ensure clear identification and improved visibility under laboratory conditions.

This three-neck round bottom flask is widely used in chemistry, pharmaceutical, research, and educational laboratories, where precision, safety, and flexibility are essential.

Areas of Use

• Chemical synthesis reactions

• Distillation and reflux setups

• Multi-component laboratory assemblies

• Research and analytical laboratories

• Educational and teaching laboratories

Key Advantages

• Manufactured from borosilicate glass for superior heat and chemical resistance

• Three ground NS necks for versatile experimental configurations

• Smooth interior joints ensure leak-proof connections

• Thick walls and heavy base enhance mechanical strength

• Reinforced rim minimizes breakage risk

• White enamel inscriptions for clear identification

Technical Specifications

• Product Type: Round Bottom Flask

• Neck Configuration: 3 Ground Necks

• Material: Borosilicate Glass

• Joint Type: NS (standard ground joints)

• Standard Compliance: DIN/ISO

• Markings: White enamel, printed

Safety Warnings

• Support the flask securely during use

• Avoid sudden temperature changes

• Inspect ground joints for cleanliness before assembly

• Always use appropriate laboratory personal protective equipment

Storage Conditions

• Store in a clean, dry, and secure environment

• Protect from mechanical shock and impact

• Store separately to prevent stress on ground joints

Usage Notes

• Ensure proper joint alignment before operation

• Suitable for heating with appropriate laboratory heating equipment

• Clean thoroughly after each use to maintain joint integrity

The Flask Glass Round Bottom 3 Ground Neck delivers durability, precision, and flexibility, making it an essential component for complex laboratory procedures in professional and educational laboratory environments.